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经营范围
发明名称
Coal mill
摘要
申请公布号
US1798465(A)
申请公布日期
1931.03.31
申请号
US19290381733
申请日期
1929.07.29
申请人
PULVERIZED FUEL EQUIPMENT CO.
发明人
GRINDLE AUBREY J.
分类号
B02C13/14;B02C13/28
主分类号
B02C13/14
代理机构
代理人
主权项
地址
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